text: The invention provides a safe, energy saved, economical and reliable method for treating converter gas. The invent comprises the steps of: cooling the converter gas to 130-170DEG C with indirect heat exchange, removing dust to purify the converter gas, detecting the converter gas. If the converter gas meets the reserved detection standard, converter gas is recovered; otherwise, the converter gas is discharged. The invention avoids the bulk water consumption during the process of cooling by using the indirect heat exchanger to cool the gas, and recover the physical sensible heat discharged during the cooling process of gas from 550DEG C to 150DEG C.